Problem Display
PID: 237558 (QR6/3ppp2/2p1p1p1/2p1k1p1/2P3P1/3PPP2/K6R/8 w - - 0 1)

Schumov, Ilya Stepanovich

Vsemirnaya Illustrantiya, 1873

QR6/3ppp2/2p1p1p1/2p1k1p1/2P3P1/3PPP2/K6R/8

#3

9 + 9


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Rb5?
      • threat
        • 2.d4+
          • 2...Kd6
            • 3.Qb8#
          • 2...Kf6
            • 3.Qh8#
      • 1...d6
        • 2.Qh8+
          • 2...f6
            • 3.d4#
        • 2.d4+
          • 2...Kf6
            • 3.Qh8#
      • 1...d5
        • 2.Qb8+
          • 2...Kf6
            • 3.Qh8#
      • 1...f5
        • 2.Qh8+
          • 2...Kd6
            • 3.Qb8#
        • 2.d4+
          • 2...Kd6
            • 3.Qb8#
          • 2...Kf6
            • 3.Qf8#
      • 1...f6
        • 2.Qb8+
          • 2...d6
            • 3.Rxc5#
            • 3.d4#
        • 2.d4+
          • 2...Kd6
            • 3.Qb8#
      • 1...cxb5!
    • 1.Rb7?
      • threat
        • 2.Rxd7
          • 2...Kf6
            • 3.Qh8#
          • 2...f5
            • 3.Qh8#
          • 2...f6
            • 3.Qb8#
      • 1...d5
        • 2.Qb8+
          • 2...Kf6
            • 3.Qh8#
        • 2.Qh8+
          • 2...Kd6
            • 3.Qb8#
          • 2...f6
            • 3.Qb8#
      • 1...f5
        • 2.Qh8+
          • 2...Kd6
            • 3.Qb8#
      • 1...f6
        • 2.Rxd7
          • 2...f5
            • 3.Qh8#
      • 1...d6!
  • Keys
    • 1.Rb1!
      • threat
        • 2.Qb8+
          • 2...Kf6
            • 3.Qh8#
          • 2...d6
            • 3.Qb2#
      • 1...d5
        • 2.Qb8+
          • 2...Kf6
            • 3.Qh8#
      • 1...d6
        • 2.Qb8
          • threat
            • 3.Qb2#
          • 2...Kf6
            • 3.Qh8#
      • 1...f5
        • 2.Qh8+
          • 2...Kd6
            • 3.Qb8#
      • 1...f6
        • 2.Qb8+
          • 2...d6
            • 3.Qb2#

FEATURES


NOT CLASSIFIED


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).